Can You Install a Metal Roof Over Shingles?

Can You Install a Metal Roof Over Shingles?

Can You Install a Metal Roof Over Shingles?

Choosing roofing materials for your home is an important decision. However, you have to decide whether you’ll remove the current shingles before installing your new roof or if it’s possible to install a metal roof over shingles. Read on to understand the pros and cons of this potential improvement and how the change may affect your home.

Determine the Condition of Your Roof

Installing a metal roof over shingles is possible but depends on the condition of your existing roof. The metal roof panels need a light, flat surface for installation. If your roof has multiple layers of shingles, the surface is too heavy for the addition of a metal roof. Remove the old shingles before installing a metal roof to provide a solid base for the new material.

However, if your roof has only one layer of shingles in good condition, you could install a metal roof over them. The metal panels will sit directly over your current roofing materials with clips or fasteners.

The Benefits of Installing a Metal Roof Over Shingles

Numerous benefits come with the addition of a metal roof over your home’s current shingles. The installation provides an extra layer of insulation, and the metal sheets reflect the sun’s rays to prevent your home from absorbing heat. A metal roof can keep your home cool and reduce the energy used by your HVAC or air conditioning system. Metal roofing is more durable than shingles, so it will last longer and require fewer repairs or replacements.

The Drawbacks of Installing a Metal Roof Over Shingles

While placing shingles on metal roofs has many benefits, it’s important to consider the drawbacks. Your roof needs to be in good condition prior to metal roof shingle installation to avoid negative side effects. If there are inconsistencies in the old shingles, such as breakage or a sagging ceiling, the new layer of shingles may look uneven.

You may encounter problems with moisture buildup if the roof has poor ventilation before adding metal shingles. The heat from inside your home may allow moisture to accumulate in the attic when temperatures are high, causing mold to form.

Your roof should be in the best condition before installing metal shingles. The state of your current shingles sets the stage for the metal additions and provides protection to your home.

Although installing a metal roof over shingles is possible, consider how it may affect your home. Contact McCarthy Metal Roofing for residential metal roof installation services if you’re unsure about the installation process.